The Allen-Bradley 1794-IRT8K FLEX I/O RTD, thermocouple, and millivolt input module comes in a Series A version and a Series B version. The 1794-IRT8K input module comes with a conformal coating that can protect it from liquids and corrosive chemicals. Its nominal input voltage rating is 24 Volts DC and it has 8 inputs but no outputs. The 8 inputs are 16-bit inputs that are not isolated. The 1794-IRT8K input module can operate at full power in a temperature range of -4 to 131 degrees Fahrenheit or -20 to 55 degrees Celsius as long as the environment does not contain condensation or large amounts of other liquids. It can be stored in a clean and dry environment with an ambient temperature range of -40 to 185 degrees Fahrenheit or -40 to 85 degrees Celsius.

The Allen-Bradley 1794-IRT8K input module is rated for safe operation and storage in cold environments and in environments with dry heat. The humidity levels that it can handle are levels of 5 to 95% non-condensing relative humidity. The 1794-IRT8K input module meets the CISPR 11 Group 1, Class A emissions standards if it is installed in the appropriate enclosure. This module also meets the CE, C-Tick, EX, TUV, and c-UL-us industrial standards. The 1794-IRT8K input module can meet the CE Low Voltage Directive standard if all of its connections receive power from a power source that is compliant with the SELV (Safety Extra Low Voltage) standards or the PELV (Protected Extra Low Voltage) standards. This module has ESD immunity.